Cyclometer attachment



E. WALDEH. CYCLOMETER ATTACHMENT. APPLICATION FILED SEPT. 13, I918.

Patented Dec. 7, 1920.

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EDWARD WALDER, OF EVANSTON, ILLINOIS.

CYCLOMETER ATTACHMENT.

Specification of Letters Patent.

Patented Dec. 7, 1920.

Application filed September 13, 1918. Serial No. 254,008.

To all whom it may concern:

Be it known that I, EDWARD VALDER, a citizen of the United States, residing at Evanston, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Cyclometer Attaclr mcnts, of which the following is a specification. I

This invention relates to a cyclometer at tachment for machines of that character which employ a stationary frame and a re ciprocating member through the operation of which the product of the machine is turned out, and the primary object of the invention is to provide a simple, inexpensive and entirely automatic device in the nature of a counter for registering the nunr ber of strokes of the reciprocating part and consequently the volume of the product of the machine; the invention having been designed mainly, although not exclusively as a counter for duplicating or multiple copying machines.

A further object is to provide an attachment of the character above specified; which may be applied to standard machines with out involving any structural modification of the latter or interfering with the usual. and normal operation or manipulation of the machine.

With these and other objects in view, which will be apparent to those skilled in the art from the following description, my invention consists in the devices and com binations hereinafter described, illustrated in one practical embodiment thereof in the accompanying drawing, and defined in the appended claims.

Referring to the drawings, wherein I have shown my invention as applied to a duplicating machine such asis designed to produce multiple copies of a written or printed sheet,

Figure 1 is a top plan view. broken out, of one side ofa fiat duplicating machine, showing my improvements applied thereto;

Fig. 2 is a side elevation partly broken out and in section of the parts shown in Fig. 1 as viewed from the lower side of the latter figure;

Fig. 3 is a cross-sectional detail on line 3-3 of Fig. 1; and

Fig. 4 is an enlarged detail partly in side elevation and partly in vertical section illustrating the clutch connection between the cyclometer shaft and the cam shaft which actuates same.

Referring to the drawing, 5 designates one of the vertical side frame members of a duplicating machine which supports a printmg bed 6 over which is stretched the usual gelatin band or apron 7 that receives the impression from the master sheet and gives it out to the copy sheets. 8 designates the frame of a platen carriage that carries the rolls by which the paper sheets are rolled out and impressed upon the printing band 7. In machines of this character the platen frame has a lateral extension 9 that is slidably mounted on a guide rod 10 extending lengthwise of the machine frame and supported at its ends in brackets .11, whereby the platen carriage is guided in its reciprocating movements over the printing bed of the machine. My present invention is not concerned with the details of the duplicating machine itself, and for a fuller description of such parts of the machine as herein illustrated reference may be had to the patents to Flanigan No. 1,118,119, Nov. 24, 1914 and No. 1,141,702, June 1, 1915.

Referring to those parts wherein the novel features of the present invention reside, 12 designates a bracket that is secured to the outer side of the frame member 5 near the rear end of the latter, and 13 designates as an entirety a numerical counter commonly known as a cyclometer that is mounted on the bracket 12. 14 designates a cyclometer shaft, to which is secured by a pin 15, a driven clutch member 16 having a ratchetface 17 formed on its outer end. 18 designates a shaft that is rotatably journaled in bearing brackets 19 and 20 secured'to the side frame member 5, the shaft 18 lying parallel with and slightly below the hori zontal plane of the guide rod 10. One end of the shaft 18, as best shown in Fig. 4, is forked at 21 and is recessed or socketed at the base of the fork, as shown at 22. 23 designates a driving clutch member having a ratchet-face 24 that cooperates with the ratchet-face 17 of the driven clutch 16. The clutch member 23 is formed with a spline 25 that slidably engages the fork 21, and with a tenon 26 that enters the recess 22, in which latter is a compression spring 27 that normally urges the driving clutch member outwardly into working engagement with the driven clutch member.

The rod 18 adjacent to its opposite end is formed with a spiral cam 28 and this cam is slidingly engaged by the forked end of an arm 29 (Fig. 3) extending from a sleeve 30 slidably mounted on the guide rod 10. The sleeve 30 lies beneath the lateral hinge eX- tension 9 of the platen carriage, and it is operatively connected so as to be actuated by the latter during its reciprocating movements by means of a pair of threaded pins or studs 31 passing through the member 9 and engaging the opposite ends of the sleeve 30.

32 (Fig. 4) designates a leaf spring that is secured at its lower end to the bracket 12 and at its free upper end bears against the driven clutch member 16 carried by the cyclometer shaft. The free end of this detent lies in the path of travel of a projecting end of the pin 15, so that at the completion of each revolution of the cyclometer shaft, the free end of the detent snaps beneath the pin 15 and prevents backward movement while the actuating shaft 18 and driving clutch 23 are being returned during the return travel of the platen carriage. 33 designates a sheet metal casing that is secured at 3 1 (Fig. l) to the top of the bracket 12 and constitutes a housing for the clutch members.

The operation of the attachment will be readily apparent from the foregoing description in connection with the drawing. At each forward or working stroke of the platen carriage the arm 29, through engagement with the cam 28, effects one complete rotation of the shaft 18 and driving clutch 23 in a direction to advance the counting mechanism of the cyclometer one step. At each return movement of the platen carriage, the shaft 18 and clutch 23 are turned in the reverse direction, but without effecting the cyclometer which is locked against backward turning by the detent 32 and pin 15. During this return revolution of the shaft 18 the driving clutch member 23 yields backwardly, its clutch tooth 24: passing behind the clutch tooth 17 of the driven clutch 16.

The present improvement excellently adapts machines of this character to piece work, since it accurately registers the number of sheets struck off by the machine during any given period of work. It will be manifest that the device herein shown and described may advantageously be applied to machines other than duplicating or multiplecopying machines which employ a reciprocating member analogous to the platen carriage, and also may be modified in respect to details of structure and arrangement without involving any departure from the principle of the invention or sacrificing any of the advantages thereof. Hence I reserve all such applications, modifications and variations as fall within the spiritand purview of the appended claims.

I claim:

1. The combination with the frame of a duplicating machine, and a platen carriage mounted to reciprocate on said machine frame, of a cyclometer mounted on one side of said machine frame, a shaft journaled 011 the same side of the machine frame in line with the cyclometer shaft, a. clutch connecting said shaft to the cyclometer shaft and operative to turn the latter in one direction only, a spiral cam on said shaft, and an arm operatively connected to said platen carriage and having a forked end slidably engaging said spiral cam and thereby turning said shaft through one revolution during each travel of said platen carriage on said machine frame.

2. The combination with the frame of a duplicating machine having a guide rod extending lengthwise thereof, and a platen carriage slidably hinged on said guide rod, of a cyclometer mounted on said machine frame, a shaft journaled on said machine frame in line with the cyclometer shaft, a clutch connecting said shaft to the cyclometer shaft and operative to turn the latter in one direction only, a spiral cam on said shaft, and an arm slidably mounted on said guide rod and coupled to the hinge of said platen carriage, said arm having a forked end slidably engaging said spiral cam and thereby turning said shaft through one revolution during each travel of said platen carriage on said machine frame.

EDWARD WVALDER. 

